Smart Student 聪明的学生
Teacher: Name some of Thomas Edison's contributions to science.
Students: If it weren't for Edison, we'd all be watching television by candle light.
老师：列举一些托马斯 爱迪生对科学的贡献。
学生：如果没有爱迪生的话，我们就只能点着蜡烛看电视了。
